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SWI VLIT2500 Series | Dual Chamber Magnetic Float Visual Level Indicator With Level Transmitter

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Sensors and Switches are mechanical-type sensing devices that do not require power to operate. Engineered based on time-proven principles such as buoyancy, conductivity, magnetic latching, capacitance and more, SWI sensors and switches are manufactured to provide reliable industrial process measurement year after year. Click on a sensing device below to learn more about our available sensors and switches product line.

SWI VLIT2500 Series | Dual Chamber Magnetic Float Visual Level Indicator With Level Transmitter


The VLIT2500 Dual Chamber Magnetic Visual Level Indicator with Level Transmitter is a practical alternative to fragile, easily-clouded sight glasses. The unit’s 2½” (63.5 mm) diameter 316 stainless steel chamber provides safe, durable and easy-to-read indication in various liquids while remaining isolated from potential media contamination. The visual level indicator's 1.25" chamber accepts a CS02 Capacitance or GW704 Guided Wave Radar Level Transmitter to provide continuous output readings correlating to the fluid level within the process vessel. The VLIT2500 withstands pressures up to 400 PSIG (27 bar) and is capable of providing accurate level indication with or without power. Various threaded, flanged and weld connections are available to mount the unit on the top, bottom or side of the tank. Additional options include custom flag color combinations and graduated scales.

Principles of Operation

Within a non-magnetic chamber of the visual level indicator, a magnetic float rises and falls according to the fluid level. The float is weighted to the specific gravity of the media and as it is carried by the fluid level, its internal magnets attract the external line of highly visible magnetic flags. Once the flags attract, they rotate and visibly track the exact measurement of the fluid.

A second chamber on the indicator houses a CS02 Capacitance or GW704 Guided Wave Radar Level Transmitter. In the CS02, the metal probe rod and outer shield act as conductive plates that encompass the dielectric media within a tank. As the electric current passes from one plate to the next, the control board within the junction box serves as a transmitter and relays an output signal corresponding to the media level within the tank. In the GW704, the process of guided wave radar combines time domain reflectometry (TDR), equivalent time sampling (ETS) and modern low-power circuity to provide an output relative to the media level.

SWI VLIT2500 Series


  • Independent Visual Level Indicator and Level Transmitter Output
  • Fully-Isolated Indicator and Pressure Chamber
  • Simple Solid-State Transmitter Calibration for Various Fluids
  • 316 Stainless Steel and Teflon Construction
  • Aluminum Indicator Flags
  • Lengths Up to 16 Feet and Visibility Up to 100 Feet (30 Meters)


  • Beverage Vessels & Tanks
  • Water & Storage Tanks
  • WFI Skids
  • DI Water Systems
  • Sanitary Mixing Tanks
  • Pharmaceutical & Biotech Vessels
  • HVAC
  • Sight Glass Replacement


  • Power Supply: 11 to 30 VDC (24 VDC Nominal)
  • Output: 4-20 mA or 0-5 VDC Selection
  • Response Time: 1/2 Second
  • Power Consumption: 1.3 VA
  • Linearity: 0.5% of Actual
  • Optional Independent Switch Contacts: SPDT (Latch) 25 Watt Maximum


  • Ambient Temperature: -40° to +160° F (-40° to +71° C)
  • Process Temperature: -40° to +400° F (-40° to +204° C)
  • Process Pressure: 400 PSIG (27.6 bar)
  • Seals: Viton (Standard), PTFE, Buna or Silicone

Mounting Configurations

Type SS

Side to Side Mounting Connection

Type TS

Side & Top Mounting Connection

Type SB

Side & Bottom Mounting Connection
Type TB
Top & Bottom Mounting Connection

Side Connections


Fixed NPT Female

Fixed NPT Male

Fixed Blind Weld

Fixed Socket Weld

Fixed Sanitary Flange

Fixed Flange

Top & Bottom Connections


Fixed Sanitary Flange

Fixed Blind

Fixed NPT Female

Fixed NPT Male

Fixed Blind Weld

Fixed Socket Weld

Fixed Flange

Removable Sanitary Flange

Removable Blind

Removable NPT Female

Removable NPT Male

Removable Blind Weld

Removable Socket Weld

Removable Flange


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About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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Dataloggers, sensors, pumps, recorders, hand held instruments, flow instrumentation, level controls, valves, instrumentation, containers, tanks, transmitters, data loggers, digital indicators, mixers and agitators, pressure intrumentation, analyzers and controllers for a variety of industrial applications such as water quality, pH/ORP and more.

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